Fig. 4From: In vitro osteoblastic differentiation of mesenchymal stem cells generates cell layers with distinct propertiesAction of collagenase I and EDTA on osteogenic layers. a Observation of cells before (left) and after (right) action of collagenase I (2 mg/ml) on day 15 of osteodifferentiation. b Ca2+ deposits before (left) and after (right) action of 40 mM of EDTA on day 29 of osteodifferentiation. Calibration bars correspond to 100 μmBack to article page